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Body cavity fluid processing device

A technology for processing device and body cavity fluid, which is applied in the direction of suction equipment, blood filtration, etc., and can solve problems such as filter membrane clogging

Active Publication Date: 2019-01-15
ASAHI KASEI MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, since ascites contains many removal substances to be removed by the filter, in the ascites treatment using the above-mentioned ascites treatment device, the filter membrane of the filter may be clogged in a short time

Method used

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  • Body cavity fluid processing device
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  • Body cavity fluid processing device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0067] figure 1 It is an explanatory diagram showing an outline of the configuration of the ascites treatment device 1 as the body cavity fluid treatment device according to the present embodiment.

[0068] The ascites treatment device 1 includes an ascites bag 10 as an ascites storage unit, a filter 11, a first line 12, a second line 13, a third line 14, a fourth line 15, a first pressure measuring device 16, and a second pressure measuring device. 17. Pump 18, first opening and closing device 19, second opening and closing device 20, upstream opening and closing device 21, cleaning liquid storage part 30, cleaning pipeline 31, cleaning opening and closing device 32, recovery device 40, control device 50 and concentration System 60, etc.

[0069] The ascites bag 10 can accommodate ascites extracted from a patient.

[0070] The filter 11 has, for example, a cylindrical shape. The filter 11 has liquid passage ports 11a and 11b at both ends in the longitudinal direction, and...

no. 2 approach

[0111] In the above-mentioned first embodiment, the inlet side of the filter membrane 70 is the inner region of the hollow fiber membrane, and the outlet side of the filter membrane 70 is the outer region of the hollow fiber membrane (internal pressure filtration), but it may also be that the filter membrane The outlet side is the inner area of ​​the hollow fiber membrane, and the inlet side of the filter membrane is the outer area of ​​the hollow fiber membrane (external pressure filtration). An example of this case will be described as a second embodiment.

[0112] Image 6 The outline of the configuration of the ascites treatment device 1 in the second embodiment is shown. In the ascites treatment device 1, the outer region (inlet side) of the filter membrane 70 of the filter 11 communicates with the liquid ports 11c and 11d, and the inner region (outlet side) of the filter membrane 70 communicates with the liquid ports 11a and 11b.

[0113] The downstream end of the firs...

no. 3 approach

[0132] Regarding the ascites treatment device 1 in the third embodiment, the difference from the first embodiment is that the cleaning line 31 is connected to the upstream side of the pump 18 on the second line 13, and the second opening and closing device 20 is not provided, but a cleaning line 31 is provided. Pump. E.g Figure 15 As shown, the ascites treatment device 1 includes an ascites bag 10 as an ascites storage part, a filter 11, a first line 12, a second line 13, a third line 14, a fourth line 15, a first pressure measuring device 16, a second Pressure measuring device 17, pump 18, first opening and closing device 19, upstream opening and closing device 21, cleaning liquid storage unit 30, cleaning pipeline 31, cleaning pump 33, recovery device 40, control device 50, concentration system 60, etc.

[0133] The filter 11 is of the internal pressure filter type similarly to the above-mentioned first embodiment, the inner area of ​​the filter membrane 70 communicates wi...

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Abstract

The present invention provides a body cavity liquid processing apparatus capable of accurately grasping the timing of cleaning a filter and automatically cleaning the filter. An ascites treatment device has a filter, a first tube line, a second tube line, a cleaning liquid storage unit, a washing tube line, a cleaning opening and closing device, a pump, a first pressure measuring device, a secondpressure measuring device, a first opening and closing device, a second opening and closing device, an upstream opening and closing device, and a control device. The control device is used for reversing the pump based on a pressure difference between the pressure measured by the first pressure measuring device and the pressure measured by the second pressure measuring device when the pressure difference exceeds a predetermined threshold value and the cleaning opening and closing device and the first opening and closing device are opened while the second opening and closing device and the upstream opening and closing device are closed; thus the cleaning liquid in the cleaning liquid storage portion can be supplied to the filtration membrane through the cleaning tube line and the second tubeline.

Description

technical field [0001] The invention relates to a body cavity fluid treatment device. Background technique [0002] As a treatment for refractory ascites, there is Cell-free and Concentrated Ascites Reinfusion Therapy: Ascites is taken from the patient, and pathogenic substances such as bacteria and cancer cells are removed from the ascites, and the This ascitic fluid is dehydrated while leaving useful components such as albumin, and the dehydrated concentrate is returned to the body. [0003] In the above-mentioned treatment method, an ascites treatment device is generally used. This ascites treatment device uses a structure in which an ascites bag, a filter, a concentrator, and a concentrated ascites bag are connected in series in this order, and the ascites is flowed by a drop or a pump to filter and concentrate the ascites. As the filter, a filter membrane such as a hollow fiber membrane is used. [0004] In addition, since ascitic fluid contains many removal substanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/34
CPCA61M1/3413
Inventor 五反田裕也
Owner ASAHI KASEI MEDICAL CO LTD
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